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A230741 as a simple table

na(n)
01
11
24
315
473
5425
62908
722855
8202849
92005929
1021864076
11260374631
123363097609
1346823803585
14699001981588
1511137295369775
16188636060894593
173384325253935025
1864113731067110644
191278893092183672159
2026792685755013073801
21588160948075800731961
2213500922657476722741164

[1,1,4,15,73,425,2908,22855,202849,2005929,
 21864076,260374631,3363097609,46823803585,
 699001981588,11137295369775,188636060894593,
 3384325253935025,64113731067110644,
 1278893092183672159,26792685755013073801,
 588160948075800731961,13500922657476722741164]